Now to the latest twist in the manti te'o story and the elaborate love hoax. We're hearing more from the man who duped the notre dame football store, ronaiah tuiasosopo is opening up about the relationship he had with te'o. Linsey davis has the details. Reporter: In an exclusive interview with dr. Phil, ronaiah tuiasosopo, the confessed master mind of the manti te'o hoax refused to re-create the voice. I love you so much. I can't, even if I tried. There was a whole lot that wept into pushing me to do something like that. To go that extreme. Even if I try, it doesn't come out right. Reporter: Dr. Phil keeps pushing. The chance that you are the person on that voice mail is like 1 in 10 million. I've even in done it in front of people. I was in a dark room. I just don't want to do it with all these cameras. Reporter: No topic seems offlimits. From his sexuality. I would say yeah, I'm gay. But honestly, I'm so confused. So lost. I'm just finding me. Reporter: To what te'o really knew. He had no idea. Reporter: Te'o, friending a woman he thought was named lennay. Not knowing tuiasosopo was the man behind this picture. All of my energy went into this. As twisted and confusing as may be, yeah, I cared for this person. Reporter: As for he chose to kill off lennay on the very day te'o's grandmother died? When he hit me with that, i said, I'm here for you, I'm praying for your family. He went on and said, no, I don't need you. It hit me like a brick wall. I was like, whoa. Right then and there, I made the decision. I can't do this lennay thing anymore. I ended it.

This transcript has been automatically generated and may not be 100% accurate.